/* =============================================================================
 * spreadsheet_menu_items.ts  (주인 E · 81-3)
 * 우클릭 메뉴에 덧붙이는 구글 시트 항목 — 기능은 전부 이미 있는 것만(분석_정함.md 81-3 · 조사_A 3 표(a)).
 * `spreadsheet_menu.ts` 가 메뉴를 열 때 한 번만 `import()`(크기 예산 — 안 열면 안 받음).
 * 안 만듦: 하이퍼링크 · 댓글 · 범위/시트 보호 · 다른 파일로 복사.
 * ========================================================================== */

import { createButton, el, showToast } from "@ui/ui_template_elements";
import { dialogKeys } from "./spreadsheet_actions";
import { pasteBlock, parseClipboard } from "./spreadsheet_clipboard";
import { pasteSpecial } from "./spreadsheet_paste_special";
import { openInsertCellsDialog, openDeleteCellsDialog } from "./spreadsheet_insert_dialog";
import { autofitColumn } from "./spreadsheet_autofit";
import { sortSelection } from "./spreadsheet_sort_dialog";
import { toggleFilter } from "./spreadsheet_filter";
import {
  freezeFirstRow,
  freezeFirstColumn,
  freezeAtActiveCell,
  unfreezePanes,
} from "./spreadsheet_view_menu";
import { createCondFmtPanel } from "./spreadsheet_condfmt";
import { createValidationPanel } from "./spreadsheet_validation";
import { st } from "./spreadsheet_text";
import type { PartHandle, SpreadsheetContext } from "./spreadsheet_view_types";

/** 보안 문맥(localhost · https)에서만 시스템 클립보드를 읽음 — http(Tailscale 주소)는 null
 * (부른 쪽이 Ctrl+V 안내로 되돌림, 지금처럼). */
async function readSystemClipboard(): Promise<{ html: string; text: string } | null> {
  if (!window.isSecureContext || !navigator.clipboard?.read) return null;
  try {
    const items = await navigator.clipboard.read();
    let html = "";
    let text = "";
    for (const item of items) {
      if (item.types.includes("text/html")) html = await (await item.getType("text/html")).text();
      if (item.types.includes("text/plain")) text = await (await item.getType("text/plain")).text();
    }
    return { html, text };
  } catch {
    return null; // 권한 거부 · 빈 클립보드 등
  }
}

/** 메뉴 [붙여넣기] — 됐으면 true(부른 쪽은 더 안 함) · 안 됐으면 false(Ctrl+V 안내로 되돌림). */
export async function pasteFromMenu(ctx: SpreadsheetContext): Promise<boolean> {
  const data = await readSystemClipboard();
  if (!data) return false;
  const at = { ...ctx.selection.활성 };
  const block = parseClipboard(data.html, data.text, at);
  if (!block) {
    showToast(st("ClipboardPasteFailed"), "error");
    return true;
  }
  pasteBlock(ctx, block, at);
  return true;
}

/** 메뉴 [선택하여 붙여넣기 — 값만 · 서식만] — 결과는 위와 같은 뜻. */
export async function pasteSpecialFromMenu(
  ctx: SpreadsheetContext,
  mode: "값" | "서식",
): Promise<boolean> {
  const data = await readSystemClipboard();
  if (!data) return false;
  const at = { ...ctx.selection.활성 };
  const block = parseClipboard(data.html, data.text, at);
  if (!block) {
    showToast(st("ClipboardPasteFailed"), "error");
    return true;
  }
  const source =
    block.출처 === "aislo" && block.원점 ? { 시트: ctx.selection.시트, ...block.원점 } : undefined;
  pasteSpecial(ctx, block, at, mode, source);
  return true;
}

// ── 행/열 크기(숫자 창) ──────────────────────────────────────────────────────
function sizeDialog(title: string, initial: number, unit: string, onOk: (n: number) => void): void {
  const input = el("input", {
    attrs: { type: "number", min: "4", step: "1", value: String(Math.round(initial)) },
  }) as HTMLInputElement;
  input.style.cssText = "width:80px;margin-right:6px;";
  const overlay = el("div", { className: "ui-confirm" });
  const panel = el("div", { className: "ui-confirm__panel" });
  const close = (): void => overlay.remove();
  overlay.addEventListener("click", (ev) => {
    if (ev.target === overlay) close();
  });
  const commit = (): void => {
    const n = Number(input.value);
    if (Number.isFinite(n) && n > 0) onOk(n);
    close();
  };
  panel.append(
    el("h3", { text: title }),
    el("div", { children: [input, el("span", { text: unit })] }),
    el("div", {
      className: "ui-confirm__actions",
      children: [
        createButton({ label: "취소", variant: "ghost", onClick: close }),
        createButton({ label: "확인", variant: "filled", onClick: commit }),
      ],
    }),
  );
  overlay.append(panel);
  document.body.append(overlay);
  dialogKeys(overlay, close, commit);
  input.focus();
  input.select();
}

export function openRowSizeDialog(ctx: SpreadsheetContext, rows: number[]): void {
  if (ctx.readOnly) return;
  sizeDialog(st("MenuRowSize"), 15, "pt", (pt) =>
    ctx.dispatch({ 종류: "행높이", 시트: ctx.sheet().id, 행: rows, 높이: pt }),
  );
}

export function openColSizeDialog(ctx: SpreadsheetContext, cols: number[]): void {
  if (ctx.readOnly) return;
  sizeDialog(
    st("MenuColSize"),
    64,
    "px",
    (px) => ctx.dispatch({ 종류: "열폭", 시트: ctx.sheet().id, 열: cols, 폭: px / 7 }), // 대략 7px/문자(헤더 쪽과 같은 어림)
  );
}

export function autofitCols(ctx: SpreadsheetContext, cols: number[]): void {
  for (const c of cols) autofitColumn(ctx, c);
}

export function sortAsc(ctx: SpreadsheetContext): void {
  sortSelection(ctx, false);
}

export function sortDesc(ctx: SpreadsheetContext): void {
  sortSelection(ctx, true);
}

export function filterToggle(ctx: SpreadsheetContext): void {
  toggleFilter(ctx);
}

export { freezeFirstRow, freezeFirstColumn, freezeAtActiveCell, unfreezePanes };

export function groupAxis(
  ctx: SpreadsheetContext,
  axis: "행" | "열",
  번호: number[],
  on: boolean,
): void {
  ctx.dispatch({
    종류: "묶음설정",
    시트: ctx.sheet().id,
    축: axis,
    번호,
    묶음: on ? { 층: 1 } : null,
  });
}

// ── 조건부 서식 · 데이터 확인 · 범위 이름 — 작은 창에 패널을 그대로 띄움 ────────────
let panel: PartHandle | null = null;
let host: HTMLElement | null = null;
function closePanelHost(): void {
  panel?.destroy();
  panel = null;
  host?.remove();
  host = null;
}
function openPanelHost(
  ctx: SpreadsheetContext,
  title: string,
  make: (c: SpreadsheetContext) => PartHandle,
): void {
  closePanelHost();
  const shut = el("button", { text: "×", attrs: { type: "button", title: "닫기" } });
  shut.style.cssText = "margin-left:auto;";
  const headRow = el("div", {
    children: [el("strong", { text: title }), shut],
  });
  headRow.style.cssText = "display:flex;align-items:center;gap:8px;margin-bottom:8px;";
  const overlay = el("div", { className: "ui-confirm" });
  const panelEl = el("div", { className: "ui-confirm__panel" });
  overlay.addEventListener("click", (ev) => {
    if (ev.target === overlay) closePanelHost();
  });
  shut.addEventListener("click", () => closePanelHost());
  panelEl.append(headRow);
  panel = make(ctx);
  if (panel.root) panelEl.append(panel.root);
  overlay.append(panelEl);
  document.body.append(overlay);
  host = overlay;
  dialogKeys(overlay, closePanelHost);
}

export function openCondFmt(ctx: SpreadsheetContext): void {
  openPanelHost(ctx, st("MenuCondFmt"), createCondFmtPanel);
}

export function openValidation(ctx: SpreadsheetContext): void {
  openPanelHost(ctx, st("MenuValidation"), createValidationPanel);
}

export async function openNames(ctx: SpreadsheetContext): Promise<void> {
  const m = await import("./spreadsheet_names");
  openPanelHost(ctx, st("MenuNames"), m.createNameManagerPanel);
}

export function insertCells(ctx: SpreadsheetContext): void {
  openInsertCellsDialog(ctx);
}

export function deleteCells(ctx: SpreadsheetContext): void {
  openDeleteCellsDialog(ctx);
}